commit f471a17e9d869df3c6573f7ec02c4725676d6f3a
author Alex Williamson <alex.williamson@redhat.com> Fri Jun 11 11:11:42 2010 -0600
committer Anthony Liguori <aliguori@us.ibm.com> Mon Jun 14 11:12:53 2010 -0500
tree 447a8cd3fde73cc5415a6635d40c7ef42164bac0
parent 2ffcb18de0bc02ad8a836ec955584c02b70e0e24

ram_blocks: Convert to a QLIST

This makes the RAM block list easier to manipulate.  Also incorporate
relevant variables into the RAMList struct.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Chris Wright <chrisw@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

cpu-all.h

diff --git a/cpu-all.h b/cpu-all.h
index 77eaf85..e31c2de 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -859,9 +859,21 @@
 /* memory API */
 
 extern int phys_ram_fd;
-extern uint8_t *phys_ram_dirty;
 extern ram_addr_t ram_size;
-extern ram_addr_t last_ram_offset;
+
+typedef struct RAMBlock {
+    uint8_t *host;
+    ram_addr_t offset;
+    ram_addr_t length;
+    QLIST_ENTRY(RAMBlock) next;
+} RAMBlock;
+
+typedef struct RAMList {
+    uint8_t *phys_dirty;
+    ram_addr_t last_offset;
+    QLIST_HEAD(ram, RAMBlock) blocks;
+} RAMList;
+extern RAMList ram_list;
 
 extern const char *mem_path;
 extern int mem_prealloc;
@@ -891,29 +903,29 @@
 /* read dirty bit (return 0 or 1) */
 static inline int cpu_physical_memory_is_dirty(ram_addr_t addr)
 {
-    return phys_ram_dirty[addr >> TARGET_PAGE_BITS] == 0xff;
+    return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] == 0xff;
 }
 
 static inline int cpu_physical_memory_get_dirty_flags(ram_addr_t addr)
 {
-    return phys_ram_dirty[addr >> TARGET_PAGE_BITS];
+    return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS];
 }
 
 static inline int cpu_physical_memory_get_dirty(ram_addr_t addr,
                                                 int dirty_flags)
 {
-    return phys_ram_dirty[addr >> TARGET_PAGE_BITS] & dirty_flags;
+    return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] & dirty_flags;
 }
 
 static inline void cpu_physical_memory_set_dirty(ram_addr_t addr)
 {
-    phys_ram_dirty[addr >> TARGET_PAGE_BITS] = 0xff;
+    ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] = 0xff;
 }
 
 static inline int cpu_physical_memory_set_dirty_flags(ram_addr_t addr,
                                                       int dirty_flags)
 {
-    return phys_ram_dirty[addr >> TARGET_PAGE_BITS] |= dirty_flags;
+    return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] |= dirty_flags;
 }
 
 static inline void cpu_physical_memory_mask_dirty_range(ram_addr_t start,
@@ -925,7 +937,7 @@
 
     len = length >> TARGET_PAGE_BITS;
     mask = ~dirty_flags;
-    p = phys_ram_dirty + (start >> TARGET_PAGE_BITS);
+    p = ram_list.phys_dirty + (start >> TARGET_PAGE_BITS);
     for (i = 0; i < len; i++) {
         p[i] &= mask;
     }